“They get £3 pocket money, but £1 is for charity, £1 is for saving and £1 is for spending, they get three coins and put them in separate jars. And they have to work for it – help in the kitchen, help in the garden. They’ve got to learn the value of doing something and earning something for themselves.”

Despite Elton’s A-list celebrity, the family lives a regular life.

“Saturdays when I’m home, we go to Pizza Hut with them, we go to Waterstones, we go to the cinema. I’ve never been a recluse, I’ve never hidden away. I’m on the school run.”